Out-of-bounds Read Affecting busybox package, versions <1:1.27.2-2ubuntu5


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.47% (76th percentile)

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  • Snyk IDSNYK-UBUNTU2010-BUSYBOX-1030479
  • published9 Jan 2019
  • disclosed9 Jan 2019

Introduced: 9 Jan 2019

CVE-2019-5747  (opens in a new tab)
CWE-125  (opens in a new tab)

How to fix?

Upgrade Ubuntu:20.10 busybox to version 1:1.27.2-2ubuntu5 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream busybox package and not the busybox package as distributed by Ubuntu. See How to fix? for Ubuntu:20.10 relevant fixed versions and status.

An issue was discovered in BusyBox through 1.30.0. An out of bounds read in udhcp components (consumed by the DHCP client, server, and/or relay) might allow a remote attacker to leak sensitive information from the stack by sending a crafted DHCP message. This is related to assurance of a 4-byte length when decoding DHCP_SUBNET. NOTE: this issue exists because of an incomplete fix for CVE-2018-20679.

CVSS Scores

version 3.1